Expression 1: negative 1 less than "x" plus "y" plus "z" less than 1 left brace, negative 1 less than "x" minus "y" minus "z" less than 1 , right brace left brace, negative 1 less than "x" minus "y" plus "z" less than 1 , right brace left brace, negative 1 less than "x" plus "y" minus "z" less than 1 , right brace left brace, negative 2 less than left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "y" plus left parenthesis, 1 minus StartRoot, 5 , EndRoot , right parenthesis "z" less than 2 , right brace left brace, negative 2 less than left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "y" minus left parenthesis, 1 minus StartRoot, 5 , EndRoot , right parenthesis "z" less than 2 , right brace left brace, negative 2 less than left parenthesis, 1 minus StartRoot, 5 , EndRoot , right parenthesis "x" plus left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "z" less than 2 , right brace left brace, negative 2 less than left parenthesis, 1 minus StartRoot, 5 , EndRoot , right parenthesis "x" minus left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "z" less than 2 , right brace left brace, negative 2 less than left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "x" plus left parenthesis, 1 minus StartRoot, 5 , EndRoot , right parenthesis "y" less than 2 , right brace left brace, negative 2 less than left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "x" minus left parenthesis, 1 minus StartRoot, 5 , EndRoot , right parenthesis "y" less than 2 , right brace left brace, negative 9 plus StartRoot, 5 , EndRoot less than 6 "y" plus 3 left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "z" less than 9 minus StartRoot, 5 , EndRoot , right brace left brace, negative 9 plus StartRoot, 5 , EndRoot less than 6 "y" minus 3 left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "z" less than 9 minus StartRoot, 5 , EndRoot , right brace left brace, negative 9 plus StartRoot, 5 , EndRoot less than 3 left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "x" plus 6 "z" less than 9 minus StartRoot, 5 , EndRoot , right brace left brace, negative 9 plus StartRoot, 5 , EndRoot less than 3 left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "x" minus 6 "z" less than 9 minus StartRoot, 5 , EndRoot , right brace left brace, negative 9 plus StartRoot, 5 , EndRoot less than 6 "x" plus 3 left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "y" less than 9 minus StartRoot, 5 , EndRoot , right brace left brace, negative 9 plus StartRoot, 5 , EndRoot less than 6 "x" minus 3 left parenthesis, 1 plus StartRoot, 5 , EndRoot , right parenthesis "y" less than 9 minus StartRoot, 5 , EndRoot , right brace Has graph.−1<x+y+z<1−1<x−y−z<1−1<x−y+z<1−1<x+y−z<1−2<1+5y+1−5z<2−2<1+5y−1−5z<2−2<1−5x+1+5z<2−2<1−5x−1+5z<2−2<1+5x+1−5y<2−2<1+5x−1−5y<2−9+5<6y+31+5z<9−5−9+5<6y−31+5z<9−5−9+5<31+5x+6z<9−5−9+5<31+5x−6z<9−5−9+5<6x+31+5y<9−5−9+5<6x−31+5y<9−5